In other words, did you try that downsampling thing on your monitor?
I know it's not too practical on low DPI, 1080p display, because you will not see as clear as on native UHD monitor.
But it's good for testing, preview, screenshot taking, or maybe even playing games that don't support any AA whatsoever, even SSAA.
Funny thing is, you can force UHD custom resolution even if your LCD is connected through D-Sub (VGA) cable.
The image in not as clear as you would get it on native resolution through DVI/DP/HDMI. But it's more than enough for above mentioned purposes
It would definitelly be good for testing and taking screenshots from games in 4K/UHD and making Detailed Report for WSGF
So, how can you force such high resolution on your display?
Here is a nice explanation:
http://screenarchery.wikia.com/wiki/Dow ... VIDIA_onlyI have 23" 1920x1200 display, connected to graphics card through D-Sub - and i can run 3840x2400@54Hz.
Here are couple of screenshots (not photos) on windows 8.1 machine. Keep in mind, i did not change any DPI settings.
I did one quick test in the game.
this is cut-out from 3840x2160 (no AA)
this is cut-out from 1920x1080 (no AA) 200% nearest neighbor.
If you want, maybe i could take take some close-up photos, to show the quality of the image (when LCD is connected through D-Sub
).